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Modelling in the Coquimbo Region

Discover the Karlsruhe Mesoscale Atmospheric Model (KAMM) applied in Coquimbo Region to study air quality influenced by terrain, aerosols, and chemical reactions. Explore the simulation steps, data inputs, and outputs from in-depth weather and climate analyses.

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Modelling in the Coquimbo Region

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  1. Modelling in the Coquimbo Region Melitta Fiebig Wittmaack + Inge Bischoff-Gauss (IWR/FZK) + Orlando Astudillo

  2. ¿What is KAMM? • Karlsruhe Mesoscale Atmospheric Model (Adrian and Fiedler .) • non- hydrostatic • complex topography (terrain following coordinate system) • chemical module coupling, aerosol module coupling, etc.

  3. Input: Datos de entrada requeridos: + vertical soundings of wind, temperature and humidity

  4. Output: 3D distributions of • wind • temperature • humidity • concentrations of chemical species

  5. Dt < 2 sec, Dx = 4.7 km H = 15 km First step: the larger flow-field with coarse discretization (Kalthoff et al. 2002)

  6. Second step: smaller simulation area with finer discretization and 1 nesting

  7. a: Δx = 1461 m, Δy = 1788 m i: Δx = 730.5 m, Δy = 894 m

  8. Third step: The influence of the Embalse Puclaro on the local climate; 3 nestings and finest discretization (with Inge Bischoff-Gauß, IWR)

  9. Simulated potential temperature rel. humidity on a summer day

  10. March 2000,Dec. 2001, Nov. 2003 Radiosoundings at La Serena, Vicuña and Cerro Tololo December 2001 Turbul. measurements at Cerro Tololo

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